[6.0] Remove deprecated strings

[Quy]

Follow up to #44271.

Summary of Changes

Remove deprecated strings.

Testing Instructions

Code review.

[brianteeman]

I have tested this item :white_check_mark: successfully on b395c2a9548a6316ca83065028d023974dbd2da9

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[ghost]

I have tested this item :white_check_mark: successfully on b395c2a9548a6316ca83065028d023974dbd2da9

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[Quy]

RTC

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[rdeutz]

Thanks